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  1. The equation for loop currents I1 and I2 are __________

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    Answer : Option C

    Explanation :

    k = 0.8

    ∴ M = kL1L2 = 0.83 x 2 = 1.95 H

    Apply KVL to loop 1

    200∠0° = (j5 + 5 + j2 - j3)I1 + 1.95I2

    ∴ 200∠0° = (5 + j4)I1 + j1.95I2

    Apply KVL to loop 2

    0 = (5 + 3 + j3)I2 + j1.95I1

    0 = (8 + j3)I2 + j1.95I1

    0 = j1.95I1 + (8 + j3)I2

    ∴ The loop equations in matrix form are

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